Over time the database table structure might change,

1 - What do you do in this case? can I simply delete my old llblgen DAL, regenerate a new llblgen DAL and copy the files over to the project. will this work? 2 - When a lblgen DAL is generated, the developer does not touch this DAL? is this correct? what if its not performing well, how can the dba or developer tweak it?

1 - What do you do in this case? can I simply delete my old llblgen DAL, regenerate a new llblgen DAL and copy the files over to the project. will this work?

Yes this should work.

2 - When a lblgen DAL is generated, the developer does not touch this DAL? is this correct? what if its not performing well, how can the dba or developer tweak it?

It should perform very well. If you ever find otherwise, please contact us and tell us precisely what the issues you are facing so we can guide you out.

thanks mate